National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

82°F

28°C

Humidity 41%
Wind Speed SW 13 mph
Barometer 30.12 in (1019.4 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 9 Feb 12:56 pm CST
Extended Forecast for

Lockhart TX

  • This Afternoon

    This Afternoon: Sunny, with a high near 84. South wind around 10 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 58. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 58 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Patchy fog between 7am and 10am. Otherwise, mostly cloudy, with a high near 78. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 78 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 58. Southeast wind around 5 mph becoming calm after midnight.

    Low: 58 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers before noon. Partly sunny, with a high near 77. Calm wind becoming north around 5 mph in the morning.

    High: 77 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57. Northeast wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 82. Calm wind becoming south around 5 mph in the afternoon.

    High: 82 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 60. South wind around 5 mph.

    Low: 60 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after noon. Mostly cloudy, with a high near 83. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 83 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 84. South wind around 10 mph.
Tonight
Increasing clouds, with a low around 58. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Patchy fog between 7am and 10am. Otherwise, mostly cloudy, with a high near 78. South wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 58. Southeast wind around 5 mph becoming calm after midnight.
Wednesday
A 20 percent chance of showers before noon. Partly sunny, with a high near 77. Calm wind becoming north around 5 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 57. Northeast wind around 5 mph becoming calm in the evening.
Thursday
Partly sunny, with a high near 82. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 60. South wind around 5 mph.
Friday
A 20 percent chance of showers after noon. Mostly cloudy, with a high near 83. South wind 5 to 15 mph, with gusts as high as 20 mph.
Friday Night
A 50 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 60.
Saturday
Showers and thunderstorms likely. Mostly sunny, with a high near 78. Chance of precipitation is 60%.
Saturday Night
Clear, with a low around 49.
Sunday
Sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lockhart TX
 29.88°N 97.68°W (Elev. 525 ft)
Last Update:
12:49 pm CST Feb 9, 2026
Forecast Valid:
1pm CST Feb 9, 2026-6pm CST Feb 15, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation